anywayz , when i reached the Fdisk part in the guide , and 2 this point :

i wanted to make the size +2048M which is 2 giga , but the fdisk doesn't except itit says somthin about defeult value or somthinthe only things i know the differs it my computer from the picture above is the part--------------------First cylinder (1-81 ,default ) , note : = somthing i forgot --------------------

my Hard-Disk Capacity is 185 GB , i used 116 for windows , and left the rest for linux